| Characteristics and Microstructure of Graphite Encapsulated Iron Nanoparticles |
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| 引用本文： | 曹宏. Characteristics and Microstructure of Graphite Encapsulated Iron Nanoparticles[J]. 武汉理工大学学报(材料科学英文版), 2007, 22(2): 214-217. DOI: 10.1007/s11595-005-2214-8 |
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| 作者姓名： | 曹宏 |
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| 作者单位： | School of |
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| 摘 要： | The graphite encapsulatedα-Fe particles were prepared by reduction of stage-2 and stage-3 FeCl 3 graphite intercalation compounds(GICs)with metallic potassium.X-ray diffraction analysis(XRD),energy dispersive X-ray spectroscopy(EDS)investigation and transmission electron microscopy(TEM) observation show that the reduction products of stage-2 FeCl 3 -GICs contains more abundantα-Fe nanoparticles than those of stage-3.High-resolution TEM(HRTEM)observation reveals that the nanoparticle ofα-Fe was polycrystals or twins,which was real or quasi two-dimension in shape,and whose space orientation was strictly controlled by the graphene.Based on the experiment results,a possible growth model of the graphite encapsulatedα-Fe was proposed.
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| 收稿时间： | 2005-12-19 |
| 修稿时间： | 2006-10-07 |
Characteristics and Microstructure of Graphite Encapsulated Iron Nanoparticles |
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| CAO Hong,LI Ru,GUI Qiji,WANG Xuehua,BIN Xiaobei. Characteristics and Microstructure of Graphite Encapsulated Iron Nanoparticles[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2007, 22(2): 214-217. DOI: 10.1007/s11595-005-2214-8 |
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| Authors: | CAO Hong LI Ru GUI Qiji WANG Xuehua BIN Xiaobei |
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| Affiliation: | (1) School of Materials Science & Engineering, Wuhan Institute of Technology, Wuhan, 430073, China;(2) School of Resource & Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China |
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| Abstract: | The graphite encapsulated α-Fe particles were prepared by reduction of stage-2 and stage-3 FeCl3 graphite intercalation compounds (GICs) with metallic potassium. X-ray diffraction analysis (XRD), energy dispersive X-ray spectroscopy (EDS) investigation and transmission electron microscopy (TEM) observation show that the reduction products of stage-2 FeCl3-GICs contains more abundant α-Fe nanoparticles than those of stage-3. High-resolution TEM (HRTEM) observation reveals that the nanoparticle of α-Fe was polycrystals or twins, which was real or quasi two-dimension in shape, and whose space orientation was strictly controlled by the graphene. Based on the experiment results, a possible growth model of the graphite encapsulated α-Fe was proposed. Funded by the Natural Science Foundation of Hubei Province (No.2004ABA090) and the Fund from the Chengguang Plan of Wuhan (No. 20065004116-35) |
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| Keywords: | encapsulated nanoparticle graphite intercalation compounds iron electron transmission microscopy (TEM) template |
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